AHALYA SUKUMAR & RAJU, K.(1987). Impact of urbanization and environmental problems of Trivandrum City. Northern Geographer , 2(2): 35-38.

SUKUMAR,B. ; AHALYA SUKUMAR ; SIDHARTHAN,S. ; & RAJU,.K(1991). Astudy on Intra Regional Development in Kasargod district, Kerala. Indian Geographical Journal, 64 : 54-60.

SUKUMAR,B & AHALYA SUKUMAR (1993) Deforestation and Ecological imbalance in Palani Hills of Tamilnadu. Indian Geographical Journal, 67(2) :85-87.

SIDHARTHAN, S. ; SUKUMAR, B. ; AHALYA SUKUMAR ; NEELAKANDAN, V.N. ; SRINIVASAN, A. ; RAMACHANDRAN, M. ; JAYAPAL,G. ; BADARUDDIN, A. ; KUMARESAN,S. ; VENUGOPAL, M. G. ; MOHANAN, S. & AJITHKUMAR, M.(1994). Creation of socio-economic database with people's participation for the plant development of panchayats. Indian Cartographer, XIV : 256-263.

SUKUMAR,B & AHALYA SUKUMAR.(1996). Altimetric Frequency Analysis of Shevaroy, Chitteri, Kalarajan, Kollimalai and Pachahmalai Hills of Tamil Nadu, India. Geographical Journal, 69 : 99-104.

SUKUMAR,B. ; AHALYA SUKUMAR & ARUNACHALAM, B.(1996). Coastal changes in Kochi Embayment. Indian Geographical Journal, 71 : 33-45.

SUKUMAR,B ; AHALYA SUKUMAR & RAJU,K (1996). Tourism potential areas and their problems in Kanyakumari district, Tamil Nadu . National Geographical Journal of India( published in 1997), 42 : 248-251.

SUKUMAR,B & AHALYA SUKUMAR.(1997). Summit levels and their geomorphic significance in the Thiruvananthapuram district of Kerala. Indian Journal of Geomorphology, 2(1) :91-98.

AHALYA SUKUMAR(1998). Work participation of rural women in Kerala. Proceedings of the XIX Indian Geography Congress, Thiruvananthapuram : 113-115.

AHALYA SUKUMAR; SUKUMAR, B. ; RAJU, K. & ARUNACHALAM, B. (1998). Urban density mapping in a GIS environment- a case study of Thiruvananthapuram,Kerala. Indian Cartographer, 17 :49-53.

SUKUMAR,B. ; AHALYA SUKUMAR & ARUNACHALAM, B.(1998). Nearshore and inshore morphological changes in the Periyar mouth, Kerala. Proceedings of the Nineteenth Anniversary Joint Seminar on Nautical Cartography - Past, Present and Future. Maritime History Society, Mumbai : 80-89.

AHALYA SUKUMAR ; SUKUMAR, B. ; RAJU, K. & ARUNACHALAM, B. (1999). 16th Century Portuguese maps of Kerala. Indian Cartographer , 18 :17-18.

AHALYA SUKUMAR ; SUKUMAR, B. and ARUNACHALAM, B, 2000. Coastal geographic studies of Kerala coast using three dimensional models, Indian Cartographer, 19, 312-316.

AHALYA SUKUMAR ; SUKUMAR, B. and ARUNACHALAM, B, 2000. Urban environmental quality assessment for Kannur town using remote sensing Data in GIS environment, Indian Cartographer, 19, 143-145

AJAYAKUMAR VARMA

Ajaykumar Varma and John Samuel. 1989. Application of Generalised Reciprocal Method for refraction seismic data: A case study from Nilambur Valley, Kerala, India. Jl. Assn. Exploration Geophysicists, Vol.X (2), pp.83-92

Ajaykumar Varma, R and Ramachandran, K.K.1992. Inputs for groundwater development in Kavaratti Island, U.T.Lakshadweep, India. Proc. 4th Kerala Sci. Congress, Thrissur, pp.333- 335.

Ajaykumar Varma, R., Unnikrishnan, K.R. and Ramachandran, K.K. 1995. Groundwater resource potential in the Union Territory of Lakshadweep, India, Ind. Jl. Earth Science, 22 (4), 65-170.

Ajaykumar Varma, R and Ramachandran, K.K. 1996. Resistivity survey for describing the fresh water lenses of Agatti Atoll, Lakshadweep, India, Jl. Assn. Expl. Geophysicists, XVII (1), 11-16.

Ajaykumar Varma, R and Subrata Sinha. 1996. Ensuring community convergence in drinking water projects through participatory resource mapping and resource literacy. Proc. Ntl. Sem. Rur. Wat. Supply& Sanitation, Rajiv Gandhi Natl. Drinking Wat. Mission, Trivandrum, 84-85.

Ajaykumar Varma, R., 1998, Significance of Watershed based Development, Proc. Seminar on Water Conservation, Kerala Irrigation Department and Kerala Water Authority, Thiruvananthapuram, p.41-45.

Ajaykumar Varma, R., Resy George, Nair, A.S.K., Gangadharan, T. and Motilal, M.R. 1999. Block level master plan for watershed based development- A conceptual approach. Proc. Ntl. Workshop. Watershed Management, Centre for Dev. Studies, Thiruvananthapuram, p.1-9.

Ajaykumar Varma, George, R., Nair, A.S.K., Krishnakumar and Aniyan, P.V. 2000. Watershed Master Plan- An approach to reinforce local level development, Proc. Intl. Conf. on Democratic Decentralisation, State Planning Board, Thiruvananthapuram, p.8.

Ajaykumar Varma R and Ramachandran K.K. 2001. Assessment of groundwater recharge at Kavaratti Island, U.T.Lakshadweep, India. Proc. 13th Kerala Sci. Congress, Thrissur, pp.24-28

Harsh K. Gupta and Ajaykumar Varma. 1986. Magnetic characteristics in Antarctica over geological contacts in Schirmacher Hill region and the ice shelf near Dakshin Gangotri (70o05'37"S, 12o00'00"E). Scientific Report of 3rd Indian Expedition to Antarctica, Dept. Ocean Dev., Govt. of India, Tech.Pub.No.3. pp.231-239. 2.

Singh, H.N., Venkatesh Raghavan and Ajaykumar Varma. 1989. Investigation of Idukki Earthquake Sequence of 7th-8th June 1988. Jl. Geol. Soc. of India, Vol.34(2), pp.133- 146.

Sivadas, T.K. and Ajaykumar Varma. 1992. A soil moisture meter with unique features for hydrological investigations. Proc. VIIIth Asia Pacific Division of Intl. Assn. Hydraulic Res. Pune.

Sajikrishnan, K., Ouseph, P.P. and Ajaykumar Varma, R. 1994. Locally adaptable measures for water quality improvement and management in a typical coastal panchayat- Clappana, Quilon District, Kerala. Proc.6th Kerala Sci. Congress, Thiruvananthapuram, pp.71- 73.

Ramachandran, K.K. and Ajaykumar Varma, R.. 1997. A review of the contribution of Centre for Earth Science Studies (CESS) towards understanding the totality of environment of Lakshadweep, India. Proc. Reg. Workshop on the Conservation and Sustainable Management of Coral Reefs, M.S.Swamynathan Res. Foundation, Chennai, India, December, C47-54.

Ramachandran, K.K and Ajaykumar Varma, R. 1998. Carrying Capacity based Development Planning and Lakshadweep- An Approach. Proc. Ntl Sem. Status and Protection of Coral Reefs-STAPCOR, U.T. of Lakshadweep. p.21-22.

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